# virtio: fix use-after-free in unregister_virtio_device()

CVE record · `CVE-2026-97996`

- **Identifiers:** `CVE-2026-97996`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:23 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `96a8326d69fffd7e8c2eb737dc060d8009a33b39 to before 951cad50cba89e736afdee4a730e0e52f9245c9b` (git)
  - affected: `96a8326d69fffd7e8c2eb737dc060d8009a33b39 to before 77dbd10a701a30fdfea5c3bb7a29163128f9a9c7` (git)
  - affected: `96a8326d69fffd7e8c2eb737dc060d8009a33b39 to before caf042153016d651b55d0fb4a63cdf7d0d23dee2` (git)
  - affected: `96a8326d69fffd7e8c2eb737dc060d8009a33b39 to before 3f9a0fceb730f5107d52421ead5568eae25a0049` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.10`
  - unaffected: `before 6.10` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-97996](https://www.cve.org/CVERecord?id=CVE-2026-97996)
- [NVD: CVE-2026-97996](https://nvd.nist.gov/vuln/detail/CVE-2026-97996)

### References from the CNA

- <https://git.kernel.org/stable/c/951cad50cba89e736afdee4a730e0e52f9245c9b>
- <https://git.kernel.org/stable/c/77dbd10a701a30fdfea5c3bb7a29163128f9a9c7>
- <https://git.kernel.org/stable/c/caf042153016d651b55d0fb4a63cdf7d0d23dee2>
- <https://git.kernel.org/stable/c/3f9a0fceb730f5107d52421ead5568eae25a0049>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-97996>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97996/>. Everything for agents: <https://agentprime.io/llms.txt>.